Typewriting machine



y 931, v 4. A; B. SMITH 1,816,343

TYPEWRITING MACHINE Patented July 28, 1931 UNITED STATES PATENT OFFICE h JESSE A. B. SMITH, OF STAMFORD, oONNEoTIoUnnssIGNoR TO UNDnRwoon ELLIOTT FISHER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE TYPEWRITING MACHINE Application filed July 13, 1927, Serial This invention relates to devices for feeding loose webs from stationary rolls to the traveling carriages of typewriters, and is illustrated as an attachment to the standard Underwood machine.

The web is fed from a stationary supplyroll beneath the rear of the machine upwardly onto the usual rearward extension provided on the transversely-operating carriage, to be conducted forwardly thereon to the platen proper.

With standard constructions, line-spacing is effected at the beginning of the carriagereturn stroke, whereby a sudden pull is exerted upon the web. The opposing inertia of the heavy supply-roll tends to set up a comparatively high tension in the web, which, on account of the extreme left-hand displacement of the carriage at this time, unequally stresses the web, tending to rupture its side edge, or else causes irregular line-space, due to slippage of the web upon the platen.

A feature of the'invention is a lifter-frame swingably attached to the rear of said car riage-extension, and governed by the carriage movement to produce slack in the web for unrestricted line-space operation, and having an equalizer-bar which is itself swiveled upon the swing-frame, so as to uniform- 1y engage and tension the web throughout the width thereof, and to eliminate local strain upon the paper when lifting the same.

- Other features and advantages will hereinafter appear.

- In the accompanying drawings,

Figure 1 is a side, elevation, partly sectioned, showing parts of a standard manifolding machine and machine-stand engaged in web-feeding operation, the source of web-supply being shown as a roll of multiple-ply stationery.

Figure 2 is a perspective view of the rear part of the machine, showing details of the paper-feeding device including the novel equalizer-bar, the web being indicated in dot and dash.

Figure 3 is a detail view, showing the swivel connection between the equalizer-bar and the lifter-frame.

No. 205,313. Renewed July 26,1928.

The web in Figure l is supplied'from a roll 10 in three superimposed plies 11, 12

and 13. By means of a reel 14: the roll is rotatably mounted upon brackets 15, which numeral 18, and which rearwardly extends from the platen-carriage 19, and is formed with longitudinal rods 20 and 20 andcrossrods 21 and 22 and by links 23 rigidly connected to the platencarriage 19. The guidebar 17, bymeans of mountings 24, is rigidly secured upon the rear cross-rod 21 of frame 18- and carries side gages 25 to laterally guide the web thereon. Passing over the frame 18 and the usual carbon-carriage 26 thereupon, the web-plies are interleaved with carbons 27 held on the carbon-carriage by the usual carbon-holding blades 27. The composite web is then advanced over guide-arm 28 and gripped by feed-rolls 29 to be fed around a platen 30, where a typebar 31 indicates the printing. The leading edge of the web is shown as having reached a paper-gage 32 mounted upon a papertable 33 of the platen-carriage. At 3 1 is indicated in dot and dash the usual lever for combined carriage-return and line-spacing operation; also in dot and dash is shown an operating handle 35 of the carbon-carriage. The platen-carriage is supported for transverse movement upon the machine by a rail-member 36 secured to the usual typewriter-frame .37, While said frame 18, extending rearwardly from the carriage, is traveling upon a corresponding rail 38 by means of rollers 39, which are mounted upon rigid brackets 40 depending from the framem'embers 20 and 20. The part 41 of the brackets engages the rail 38 opposite the roller and is to keep said roller from lifting clear off the rail 38. rigidly mounted upon rearwardextensions 42 provided on the typewriter-frame 37 at either side thereof.

The web-loosener device mainly consists. of a carrier-swing-frame 43 at the rear of Therail in turn is the machine and includes flatbar side members 4 k and at their upper ends 46 and 47 respectively detachably hinged to the cross-rod 21 of said carriage-extension, and at their lower ends joined together and riveted, as. shown in the drawings, thereby forming: a central. projection 4L8 serving. as a central support for the novel equalizerbar 49 swiveled thereon and which is to lift the web; A detail of" the swivel joint in Figure 3 shows-the projection 48 extending within a longitudinal slot 50 of the eqnalizer-bar 49 and pivoted thereto at 51'.

The side members 44 and 45. of thecarrier-sWing-frame are spaced by a rod 52 upon; whichiai bracket 53 by means of ears 541 is pivoted. for, vertical swinging movement,,while simultaneous1yv secured against.

lateral dislocation. as it appears from the diiawilags. The bracket.canriers a roiler tmcomperate with a V-shapedrail 56, which is detachably secured at. either end to the rearward extensions 42 of the machineframmeachrend 57' ofsaid rail being bent fm'wamlly and by means of set-screw- 58 Iagidly heldin a. block 58, which, in turn, by means of: a' clip 59, is. secured to the end of .extensienAQ-ofthe machine-frame. method of fastening the rail as well as the .hingiai'g of the carrier-swing-frame. d'escnibed before; perm-its a ready attachmentof. the Web-feeding device to standard.

machines,

' b will; be. understood that every time the canriagepasses in onedirection, due to the roller being forced over the Vt-shaped rail- 56,. the carriers-swing:frame will; be pushedtoutavandl so that the novel equaliuer-bar thereupon. uniformly adapting itself. to the Web may lift the same smoothly and? cause the supply-roll I to unwind accordnelr In the operation of the machine unwi-n ing will occur during the cauriage-rctui stroke, inasmuch as part of the slacleoned web. is used up for linespacing, atthev-ery beg-inningof the stroke, while in the fun thercourse: thereof new slack is producedby the li-fting-flevice toaccommodate the next line-spacing. operation.

It is clear as appears from Figure 1 that the novelequnlizenbar is of particular importance where the web-feeding pull from the platen ist-ransmitted only through the outer ply of, a multiple-ply wound supplyroll herein: illustrated.

This leadingply stationary at one endnud tramsversely.traveling at the other end and therefore particularly susceptible to sti and. ruptures cannot be overstre, l the intermediate novel self-adjustin bar, for obviously the bar skews with. the ply as the upper port-ion thereo-ftravols with the; marriage, so that the pressure of the bar is uniformly distributed across the bar This engaged portion of the ply as the roll is unwound by the movement of the loosening device a whole. In the operation of manually pulling the leading end of the multipleply web forwar la" over the carbonca-rriage to arrange ction in position for typing there i, the bar is eifective to tension the pressed portion of the outer ply uniformly throughout the forward feed movement of"the-multiple-ply Web. By thusequalizi-ng the stress in the bar-engaged portion of the paper not only is the web itself protected against rupture, but also its bacl; strain upon the platen is -miuated, while on the other end the pull upouthe supply-roll is exeffectively, thus promoting smooth. opei ion of the machine as a whole Variations may be resorted to Within thescope of the invention, and portions. ofthe improvements may be used without others.

Having thus described my invention, I claim:

1. In a continuous billing machine, the combination with a webrfeeding platen, a carriage therefor, a multiple-ply web sup plied at the rear of the machine from a suitable source adjacent to the machine, and a frame rigidly attached to the rear of the carriagefor webintake and conducting the: web to the platen, of a web-lifting device tofacilitate feeding of the web, including an equalizer-bar extending across said web and located between the source of Web-supply and the web-intake, said equalizer-bar centrally swiveled so as to fit itself to uniformly engage. the web, and means tosupport' said. bar and which are IGClPIOCELHVQly actuable lifting device to facilitate feeding of the:

Web, including an equalizer-bar extending acrosssaid web between the source of Websupply and the web-intake, said equalizerbar to be centrally swiveied so as to fititself to. uniformly engage the leading outer ply of the Web, and means to support said equalizer-bar and which are reciprocati'veiy arctuableto engage the bar for web lifting and slackening operation.

3. In: a continuous billing machine, the

combination: with a web-feeding"platen, a

carriage therefor, a multiple-ply Web supplied at the rear of the machine from' a stationary roll-nor. rolls mounted beneath the machine, and a frame:rigidly attachedito the rear of the carriage for web-intake and conducting the web to the platen, of a weblifting device to facilitate feedlng of the Web, including an equalizer-bar extending across said web between the source of websupply and the web-intake, said equalizerbar to be centrally swiveled so as to fit itself to uniformly engage the web, and means to support said bar and which are reciprocatively actuable to engage the same for web lifting and slackening operation, whereby said reciprocative movement is governed by the carriage movement to cause periodical unwinding of the supply-roll ahead of-the line-spacing operation.

4. In a continuous billing machine, the combination with a web-feeding platen, acarriage therefor, a multple-ply web supplied at the rear of the machine from a suitable source adjacent to the machine, and a frame attached to the rear of the carriage for web-intake and conducting the web to the platen, of a web-lifting device to facilitatefeeding of the web, including an equalizer-bar extending across said web between the source of web-supply and the web-intake, said equalizer-bar to be centrally swiveled so as to fit itself to uniformly engage the web, a swing-frame at its lower end carrying said swiveled equalizer-bar and at its upper end pivotally engaged to the rear of the carriage-frame, so as to be swung in a vertical plane, a substantially V-shaped guide-rail or cam-member rigidly secured to the machine-frame, and a bracket upon said swingframe also swingable in a vertical plane and carrying a roller to be operatively engaged with said guide-rail, so that when the carriage is transversely reciprocated, the roller is moved over the guide-rail and passing over "the peak thereof will cause the frame to swing accordingly to engage the equalizerbar thereon for periodical web lifting and slackening operation.

5. In a continuous billing typewriting machine having means supporting a stationary web-supply roll, the combination with a carriage engaging the leading end portion of a web paying off said roll, of a webloosener including a web-engaging equalizer bar extending across the web adjacent the roll, a vibrating carrier mounted for movement with the carriage, and a pivotal connection between the carrier and the bar intermediate the ends of the bar to enable the carrier to press the bar against the web'delivered from the roll, and to allow the bar to skew with the web as the upper portion of the web travels with the carriage, whereby the bar is effective to tension the pressed portion of the web uniformly throughout web-loosening. p

6. In a continuous billing typewriting machine having means supporting a stationary web-supply roll, the combination with a carriage'engaging the leading end portion of a web paying off said roll, of a webloosener including a web-engaging equalizer bar extending across the front face of the web adjacent the roll, a carrier swingably mounted for movement with the carriage, and a pivotal connection between the carrierand the central portion of the barf-to enable the carrier to press the bar against the web delivered from the roll, and to allow the bar to skew with the web asthe upper portion thereof travels with the carriage, whereby the bar is effective to tension the pressed portion of the web uniformly throughout web-loosening.

7 In a continuous billing typewriting machine having means supporting a stationary web-supply roll, the combination with a carriage engaging the leading end portion of a web paying off said roll, of a webloosener including a web-engaging equalizer bar extending across the web adjacent the roll, a vibrating carrier mounted for move ment with the carriage and extending downwardly from the rear of the carriage in front of the web, and a yieldable connection between the carrier and the central portion of the bar to enable the carrier to press the bar against the web delivered from the roll, and to allow the bar to skew with the web as the upper portion thereof travels with. the carriage, whereby the bar is efiective to tension the pressed portion of the web uniformly throughout web-loosening.

8. In a continuous billing typewriting machine having means supporting a stationary web-supply roll, the combination with a carriage engaging the leading end portion of a web paying off said roll, of a webloosener including a web-engaging equalizer bar extending across the web adjacent the roll, a vibrating carrier mounted for movement with the carriageand having a downwardly and rearwardly directed offset portion disposed between the. carriage and the web, and a yieldable connection between said offset portion and the bar to enable the carrier to press the bar against the web delivered from the roll, and to allow the bar to skew with the web as the upper portion of the web travels with the carriage, whereby the bar is effective to tension the pressed portion of the web uniformly throughout web-loosening.

9. In a continuous billing typewriting machine having means'supporting astationary web-supply roll, the combination with a carriage and line-spacing mechanism mounted upon said carriage and including a platen engaging the leading end portion of a web paying off said roll, of a webloosener including a web-engaging equalizer bar extending across the'web adjacent the roll, a vibrating carrier mounted for move- .ment with the carriage, and a pivotal connection between the carrier and the ban between its ends to enable the carrier to press the her against the Web delivered-from the. roll, and to allow the bar to skew with the web as the upper portion of the web travels withthe carriage, whereby the bar is efi'ece tive to tension the pressed portion of the web uniform-1y throughout Web-"loosening, and is further effective to tension said pressed portion uniformly as the Webis fed to the platen by the line-spacing mechanisma.

JESSE A. B; SMITH. 

